PT-2013-2893 · Cisco · Cisco Nx-Os+1

Published 2013-09-17 · Updated 2013-09-20 · CVE-2013-1121

Positive Technologies (AI Summary)

CVSS v2.0

5.4

Medium

Base vector

AV:N/AC:H/Au:N/C:N/I:N/A:C

Name of the Vulnerable Software and Affected Versions Cisco NX-OS (affected versions not specified)

Description The issue is related to the regex engine in the BGP implementation, which can cause a denial of service (device reload) when a complex regular expression is configured for inbound routes. An unauthenticated, remote attacker can exploit this by injecting specific autonomous system (AS) path sets, potentially triggering the device to restart.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Weakness Enumeration

CWE-399

Related Identifiers

CVE-2013-1121

Affected Products

Cisco Nx-Os

Cisco Nexus

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2013-1121 · Security Note
• http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-1121 · Vendor Advisory
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/Cisco-SA-20130917-CVE-2013-1121 · Note